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The first true "alien Earth" will likely be discovered in the next two years, a NASA scientist says. Astronomers have found more than 750 alien planets to date, and NASA's Kepler Space Telescope has flagged 2,300 additional "candidates" awaiting confirmation by follow-up studies.
Astronomers have found three alien planets smaller than Earth, orbiting a star much smaller than our Sun. Pretty cool stuff.
Mysterious metal globe 'may be proof aliens are watching us and created life on Earth' - Scientists in the UK say this microscopic metal globe could be proof that aliens are watching us. Balloons sent 27km into the stratosphere to collect debris came back with the object, no bigger than the width of a human hair.
The Sun Exploded Last Week: Gotta-See Video : Discovery News
Nanoparticles formed using human viruses, to fight human viruses Virus-imprinted nanoparticle molds may be used to detect, remove viral infections.
Astronomers have used the NASA/ESA Hubble Space Telescope to study some of the smallest and faintest galaxies in our cosmic neighbourhood. These galaxies are fossils of the early Universe: they have barely changed for 13 billion years. The discovery could help explain the so-called "missing satellite" problem, where only a handful of satellite galaxies have been found around the Milky Way, against the thousands that are predicted by theories.